Delayed allergies can contribute to many chronic conditions including: migraines, autoimmune problems, lupus, fibromyalgia, asthma, diabetes, thyroiditis, and rheumatoid arthritis, just to name a few. Safe to use with children, the LRA blood tests measure delayed allergic reactions to foods, additives and preservatives, food colorings, molds, environmental chemicals, toxic minerals, medications, herbs, dander, hairs, and feathers. Tests range from basic panels for one category as listed above to more comprehensive panels that include more items. A detailed report identifies nonreactive, moderately reactive and strongly reactive items. It is best to have this test under the supervision of your health care provider; however, some states allow the consumer to order their own test.